A former Russian lawmaker turned Putin critic was shot and killed in Ukraine on Thursday.

Denis Voronenkov fled to Ukraine in October 2016 after he was accused of corruption. He was an outspoken opponent of Russian President Vladimir Putin and more than once compared Putin's regime to Nazi Germany.

Voronenkov was shot twice in the head outside a hotel in Kiev. His bodyguard and the assailant were both injured in the confrontation.